Find IP IPv4 Network/Subnet and its host address ranges

What is an IPv4 IP address its network and host address ranges?

An IPv4 IP address is an address used in order to uniquely identify a device on an IP network. The address is made up of 32 binary bits, which can be divisible into a network portion and host portion with the help of a subnet mask. The 32 binary bits are broken into four octets (1 octet = 8 bits). Each octet is converted to decimal and separated by a period (dot).

How to Subnet IPv4? Its simple answer is that subnetting is the process of taking a network and splitting it into smaller networks, known as subnets. It's used to free up more public IPv4 addresses and segment networks for security and easier management.
Following are the ranges of IPv4 subnet/network address and their host addresses.

IPv4 AddressIPv6 Address
72.72.37.1 0:0:0:0:0:ffff:4848:2501
72.72.37.2 0:0:0:0:0:ffff:4848:2502
72.72.37.3 0:0:0:0:0:ffff:4848:2503
72.72.37.4 0:0:0:0:0:ffff:4848:2504
72.72.37.5 0:0:0:0:0:ffff:4848:2505
72.72.37.6 0:0:0:0:0:ffff:4848:2506
72.72.37.7 0:0:0:0:0:ffff:4848:2507
72.72.37.8 0:0:0:0:0:ffff:4848:2508
72.72.37.9 0:0:0:0:0:ffff:4848:2509
72.72.37.10 0:0:0:0:0:ffff:4848:250a
72.72.37.11 0:0:0:0:0:ffff:4848:250b
72.72.37.12 0:0:0:0:0:ffff:4848:250c
72.72.37.13 0:0:0:0:0:ffff:4848:250d
72.72.37.14 0:0:0:0:0:ffff:4848:250e
72.72.37.15 0:0:0:0:0:ffff:4848:250f
72.72.37.16 0:0:0:0:0:ffff:4848:2510
72.72.37.17 0:0:0:0:0:ffff:4848:2511
72.72.37.18 0:0:0:0:0:ffff:4848:2512
72.72.37.19 0:0:0:0:0:ffff:4848:2513
72.72.37.20 0:0:0:0:0:ffff:4848:2514
72.72.37.21 0:0:0:0:0:ffff:4848:2515
72.72.37.22 0:0:0:0:0:ffff:4848:2516
72.72.37.23 0:0:0:0:0:ffff:4848:2517
72.72.37.24 0:0:0:0:0:ffff:4848:2518
72.72.37.25 0:0:0:0:0:ffff:4848:2519
72.72.37.26 0:0:0:0:0:ffff:4848:251a
72.72.37.27 0:0:0:0:0:ffff:4848:251b
72.72.37.28 0:0:0:0:0:ffff:4848:251c
72.72.37.29 0:0:0:0:0:ffff:4848:251d
72.72.37.30 0:0:0:0:0:ffff:4848:251e
72.72.37.31 0:0:0:0:0:ffff:4848:251f
72.72.37.32 0:0:0:0:0:ffff:4848:2520
72.72.37.33 0:0:0:0:0:ffff:4848:2521
72.72.37.34 0:0:0:0:0:ffff:4848:2522
72.72.37.35 0:0:0:0:0:ffff:4848:2523
72.72.37.36 0:0:0:0:0:ffff:4848:2524
72.72.37.37 0:0:0:0:0:ffff:4848:2525
72.72.37.38 0:0:0:0:0:ffff:4848:2526
72.72.37.39 0:0:0:0:0:ffff:4848:2527
72.72.37.40 0:0:0:0:0:ffff:4848:2528
72.72.37.41 0:0:0:0:0:ffff:4848:2529
72.72.37.42 0:0:0:0:0:ffff:4848:252a
72.72.37.43 0:0:0:0:0:ffff:4848:252b
72.72.37.44 0:0:0:0:0:ffff:4848:252c
72.72.37.45 0:0:0:0:0:ffff:4848:252d
72.72.37.46 0:0:0:0:0:ffff:4848:252e
72.72.37.47 0:0:0:0:0:ffff:4848:252f
72.72.37.48 0:0:0:0:0:ffff:4848:2530
72.72.37.49 0:0:0:0:0:ffff:4848:2531
72.72.37.50 0:0:0:0:0:ffff:4848:2532
72.72.37.51 0:0:0:0:0:ffff:4848:2533
72.72.37.52 0:0:0:0:0:ffff:4848:2534
72.72.37.53 0:0:0:0:0:ffff:4848:2535
72.72.37.54 0:0:0:0:0:ffff:4848:2536
72.72.37.55 0:0:0:0:0:ffff:4848:2537
72.72.37.56 0:0:0:0:0:ffff:4848:2538
72.72.37.57 0:0:0:0:0:ffff:4848:2539
72.72.37.58 0:0:0:0:0:ffff:4848:253a
72.72.37.59 0:0:0:0:0:ffff:4848:253b
72.72.37.60 0:0:0:0:0:ffff:4848:253c


72.72.37.61 0:0:0:0:0:ffff:4848:253d
72.72.37.62 0:0:0:0:0:ffff:4848:253e
72.72.37.63 0:0:0:0:0:ffff:4848:253f
72.72.37.64 0:0:0:0:0:ffff:4848:2540
72.72.37.65 0:0:0:0:0:ffff:4848:2541
72.72.37.66 0:0:0:0:0:ffff:4848:2542
72.72.37.67 0:0:0:0:0:ffff:4848:2543
72.72.37.68 0:0:0:0:0:ffff:4848:2544
72.72.37.69 0:0:0:0:0:ffff:4848:2545
72.72.37.70 0:0:0:0:0:ffff:4848:2546
72.72.37.71 0:0:0:0:0:ffff:4848:2547
72.72.37.72 0:0:0:0:0:ffff:4848:2548
72.72.37.73 0:0:0:0:0:ffff:4848:2549
72.72.37.74 0:0:0:0:0:ffff:4848:254a
72.72.37.75 0:0:0:0:0:ffff:4848:254b
72.72.37.76 0:0:0:0:0:ffff:4848:254c
72.72.37.77 0:0:0:0:0:ffff:4848:254d
72.72.37.78 0:0:0:0:0:ffff:4848:254e
72.72.37.79 0:0:0:0:0:ffff:4848:254f
72.72.37.80 0:0:0:0:0:ffff:4848:2550
72.72.37.81 0:0:0:0:0:ffff:4848:2551
72.72.37.82 0:0:0:0:0:ffff:4848:2552
72.72.37.83 0:0:0:0:0:ffff:4848:2553
72.72.37.84 0:0:0:0:0:ffff:4848:2554
72.72.37.85 0:0:0:0:0:ffff:4848:2555
72.72.37.86 0:0:0:0:0:ffff:4848:2556
72.72.37.87 0:0:0:0:0:ffff:4848:2557
72.72.37.88 0:0:0:0:0:ffff:4848:2558
72.72.37.89 0:0:0:0:0:ffff:4848:2559
72.72.37.90 0:0:0:0:0:ffff:4848:255a
72.72.37.91 0:0:0:0:0:ffff:4848:255b
72.72.37.92 0:0:0:0:0:ffff:4848:255c
72.72.37.93 0:0:0:0:0:ffff:4848:255d
72.72.37.94 0:0:0:0:0:ffff:4848:255e
72.72.37.95 0:0:0:0:0:ffff:4848:255f
72.72.37.96 0:0:0:0:0:ffff:4848:2560
72.72.37.97 0:0:0:0:0:ffff:4848:2561
72.72.37.98 0:0:0:0:0:ffff:4848:2562
72.72.37.99 0:0:0:0:0:ffff:4848:2563
72.72.37.100 0:0:0:0:0:ffff:4848:2564
72.72.37.101 0:0:0:0:0:ffff:4848:2565
72.72.37.102 0:0:0:0:0:ffff:4848:2566
72.72.37.103 0:0:0:0:0:ffff:4848:2567
72.72.37.104 0:0:0:0:0:ffff:4848:2568
72.72.37.105 0:0:0:0:0:ffff:4848:2569
72.72.37.106 0:0:0:0:0:ffff:4848:256a
72.72.37.107 0:0:0:0:0:ffff:4848:256b
72.72.37.108 0:0:0:0:0:ffff:4848:256c
72.72.37.109 0:0:0:0:0:ffff:4848:256d
72.72.37.110 0:0:0:0:0:ffff:4848:256e
72.72.37.111 0:0:0:0:0:ffff:4848:256f
72.72.37.112 0:0:0:0:0:ffff:4848:2570
72.72.37.113 0:0:0:0:0:ffff:4848:2571
72.72.37.114 0:0:0:0:0:ffff:4848:2572
72.72.37.115 0:0:0:0:0:ffff:4848:2573
72.72.37.116 0:0:0:0:0:ffff:4848:2574
72.72.37.117 0:0:0:0:0:ffff:4848:2575
72.72.37.118 0:0:0:0:0:ffff:4848:2576
72.72.37.119 0:0:0:0:0:ffff:4848:2577
72.72.37.120 0:0:0:0:0:ffff:4848:2578


72.72.37.121 0:0:0:0:0:ffff:4848:2579
72.72.37.122 0:0:0:0:0:ffff:4848:257a
72.72.37.123 0:0:0:0:0:ffff:4848:257b
72.72.37.124 0:0:0:0:0:ffff:4848:257c
72.72.37.125 0:0:0:0:0:ffff:4848:257d
72.72.37.126 0:0:0:0:0:ffff:4848:257e
72.72.37.127 0:0:0:0:0:ffff:4848:257f
72.72.37.128 0:0:0:0:0:ffff:4848:2580
72.72.37.129 0:0:0:0:0:ffff:4848:2581
72.72.37.130 0:0:0:0:0:ffff:4848:2582
72.72.37.131 0:0:0:0:0:ffff:4848:2583
72.72.37.132 0:0:0:0:0:ffff:4848:2584
72.72.37.133 0:0:0:0:0:ffff:4848:2585
72.72.37.134 0:0:0:0:0:ffff:4848:2586
72.72.37.135 0:0:0:0:0:ffff:4848:2587
72.72.37.136 0:0:0:0:0:ffff:4848:2588
72.72.37.137 0:0:0:0:0:ffff:4848:2589
72.72.37.138 0:0:0:0:0:ffff:4848:258a
72.72.37.139 0:0:0:0:0:ffff:4848:258b
72.72.37.140 0:0:0:0:0:ffff:4848:258c
72.72.37.141 0:0:0:0:0:ffff:4848:258d
72.72.37.142 0:0:0:0:0:ffff:4848:258e
72.72.37.143 0:0:0:0:0:ffff:4848:258f
72.72.37.144 0:0:0:0:0:ffff:4848:2590
72.72.37.145 0:0:0:0:0:ffff:4848:2591
72.72.37.146 0:0:0:0:0:ffff:4848:2592
72.72.37.147 0:0:0:0:0:ffff:4848:2593
72.72.37.148 0:0:0:0:0:ffff:4848:2594
72.72.37.149 0:0:0:0:0:ffff:4848:2595
72.72.37.150 0:0:0:0:0:ffff:4848:2596
72.72.37.151 0:0:0:0:0:ffff:4848:2597
72.72.37.152 0:0:0:0:0:ffff:4848:2598
72.72.37.153 0:0:0:0:0:ffff:4848:2599
72.72.37.154 0:0:0:0:0:ffff:4848:259a
72.72.37.155 0:0:0:0:0:ffff:4848:259b
72.72.37.156 0:0:0:0:0:ffff:4848:259c
72.72.37.157 0:0:0:0:0:ffff:4848:259d
72.72.37.158 0:0:0:0:0:ffff:4848:259e
72.72.37.159 0:0:0:0:0:ffff:4848:259f
72.72.37.160 0:0:0:0:0:ffff:4848:25a0
72.72.37.161 0:0:0:0:0:ffff:4848:25a1
72.72.37.162 0:0:0:0:0:ffff:4848:25a2
72.72.37.163 0:0:0:0:0:ffff:4848:25a3
72.72.37.164 0:0:0:0:0:ffff:4848:25a4
72.72.37.165 0:0:0:0:0:ffff:4848:25a5
72.72.37.166 0:0:0:0:0:ffff:4848:25a6
72.72.37.167 0:0:0:0:0:ffff:4848:25a7
72.72.37.168 0:0:0:0:0:ffff:4848:25a8
72.72.37.169 0:0:0:0:0:ffff:4848:25a9
72.72.37.170 0:0:0:0:0:ffff:4848:25aa
72.72.37.171 0:0:0:0:0:ffff:4848:25ab
72.72.37.172 0:0:0:0:0:ffff:4848:25ac
72.72.37.173 0:0:0:0:0:ffff:4848:25ad
72.72.37.174 0:0:0:0:0:ffff:4848:25ae
72.72.37.175 0:0:0:0:0:ffff:4848:25af
72.72.37.176 0:0:0:0:0:ffff:4848:25b0
72.72.37.177 0:0:0:0:0:ffff:4848:25b1
72.72.37.178 0:0:0:0:0:ffff:4848:25b2
72.72.37.179 0:0:0:0:0:ffff:4848:25b3
72.72.37.180 0:0:0:0:0:ffff:4848:25b4


72.72.37.181 0:0:0:0:0:ffff:4848:25b5
72.72.37.182 0:0:0:0:0:ffff:4848:25b6
72.72.37.183 0:0:0:0:0:ffff:4848:25b7
72.72.37.184 0:0:0:0:0:ffff:4848:25b8
72.72.37.185 0:0:0:0:0:ffff:4848:25b9
72.72.37.186 0:0:0:0:0:ffff:4848:25ba
72.72.37.187 0:0:0:0:0:ffff:4848:25bb
72.72.37.188 0:0:0:0:0:ffff:4848:25bc
72.72.37.189 0:0:0:0:0:ffff:4848:25bd
72.72.37.190 0:0:0:0:0:ffff:4848:25be
72.72.37.191 0:0:0:0:0:ffff:4848:25bf
72.72.37.192 0:0:0:0:0:ffff:4848:25c0
72.72.37.193 0:0:0:0:0:ffff:4848:25c1
72.72.37.194 0:0:0:0:0:ffff:4848:25c2
72.72.37.195 0:0:0:0:0:ffff:4848:25c3
72.72.37.196 0:0:0:0:0:ffff:4848:25c4
72.72.37.197 0:0:0:0:0:ffff:4848:25c5
72.72.37.198 0:0:0:0:0:ffff:4848:25c6
72.72.37.199 0:0:0:0:0:ffff:4848:25c7
72.72.37.200 0:0:0:0:0:ffff:4848:25c8
72.72.37.201 0:0:0:0:0:ffff:4848:25c9
72.72.37.202 0:0:0:0:0:ffff:4848:25ca
72.72.37.203 0:0:0:0:0:ffff:4848:25cb
72.72.37.204 0:0:0:0:0:ffff:4848:25cc
72.72.37.205 0:0:0:0:0:ffff:4848:25cd
72.72.37.206 0:0:0:0:0:ffff:4848:25ce
72.72.37.207 0:0:0:0:0:ffff:4848:25cf
72.72.37.208 0:0:0:0:0:ffff:4848:25d0
72.72.37.209 0:0:0:0:0:ffff:4848:25d1
72.72.37.210 0:0:0:0:0:ffff:4848:25d2
72.72.37.211 0:0:0:0:0:ffff:4848:25d3
72.72.37.212 0:0:0:0:0:ffff:4848:25d4
72.72.37.213 0:0:0:0:0:ffff:4848:25d5
72.72.37.214 0:0:0:0:0:ffff:4848:25d6
72.72.37.215 0:0:0:0:0:ffff:4848:25d7
72.72.37.216 0:0:0:0:0:ffff:4848:25d8
72.72.37.217 0:0:0:0:0:ffff:4848:25d9
72.72.37.218 0:0:0:0:0:ffff:4848:25da
72.72.37.219 0:0:0:0:0:ffff:4848:25db
72.72.37.220 0:0:0:0:0:ffff:4848:25dc
72.72.37.221 0:0:0:0:0:ffff:4848:25dd
72.72.37.222 0:0:0:0:0:ffff:4848:25de
72.72.37.223 0:0:0:0:0:ffff:4848:25df
72.72.37.224 0:0:0:0:0:ffff:4848:25e0
72.72.37.225 0:0:0:0:0:ffff:4848:25e1
72.72.37.226 0:0:0:0:0:ffff:4848:25e2
72.72.37.227 0:0:0:0:0:ffff:4848:25e3
72.72.37.228 0:0:0:0:0:ffff:4848:25e4
72.72.37.229 0:0:0:0:0:ffff:4848:25e5
72.72.37.230 0:0:0:0:0:ffff:4848:25e6
72.72.37.231 0:0:0:0:0:ffff:4848:25e7
72.72.37.232 0:0:0:0:0:ffff:4848:25e8
72.72.37.233 0:0:0:0:0:ffff:4848:25e9
72.72.37.234 0:0:0:0:0:ffff:4848:25ea
72.72.37.235 0:0:0:0:0:ffff:4848:25eb
72.72.37.236 0:0:0:0:0:ffff:4848:25ec
72.72.37.237 0:0:0:0:0:ffff:4848:25ed
72.72.37.238 0:0:0:0:0:ffff:4848:25ee
72.72.37.239 0:0:0:0:0:ffff:4848:25ef
72.72.37.240 0:0:0:0:0:ffff:4848:25f0
72.72.37.241 0:0:0:0:0:ffff:4848:25f1
72.72.37.242 0:0:0:0:0:ffff:4848:25f2
72.72.37.243 0:0:0:0:0:ffff:4848:25f3
72.72.37.244 0:0:0:0:0:ffff:4848:25f4
72.72.37.245 0:0:0:0:0:ffff:4848:25f5
72.72.37.246 0:0:0:0:0:ffff:4848:25f6
72.72.37.247 0:0:0:0:0:ffff:4848:25f7
72.72.37.248 0:0:0:0:0:ffff:4848:25f8
72.72.37.249 0:0:0:0:0:ffff:4848:25f9
72.72.37.250 0:0:0:0:0:ffff:4848:25fa
72.72.37.251 0:0:0:0:0:ffff:4848:25fb
72.72.37.252 0:0:0:0:0:ffff:4848:25fc
72.72.37.253 0:0:0:0:0:ffff:4848:25fd
72.72.37.254 0:0:0:0:0:ffff:4848:25fe
72.72.37.255 0:0:0:0:0:ffff:4848:25ff


How we got IPv4 subnet masks?

An IPv4 subnet mask consists of 32 bits; it is a sequence of ones (1) followed by a block of zeros (0). The ones indicate bits in the address used for the network prefix and the trailing block of zeros designates that part as being the host identifier.